Thermo- Pond Heater floats on top of the water and is thermostatically
controlled to never get hot. Will never burn a pond liner or plastic pond.
The heating element does not touch the water, so there is no build-up or
crusting of the element.

Completely enclosed in ABS plastic with gas-exchange design. When
temperatures exceed the ability of the unit to create ice-free space around
the Thermo Pond, the unit itself facilitates gas exchange right through it.

First energy efficient pond heater! Operates on only 100 watts -
12-15 times less power than other leading brands. So efficient it pays for
itself in as little as 2 months. Cost as little as $2.00 per month compared
to other heaters which cost as much as $35 per month.

Tested in the Northwoods of Wisconsin at temperatures dipping down below
30 degrees below Zero F.

One Year Manufacturer's warranty

Note: We recommend more than one Thermo Pond for ponds over 1000
gallons. Additionally, ponds with heavy fish load or heavy organic plant
decay over winter will need more gas exchange than very clean ponds with
minimal fish. Order more than one unit for larger, heavily fish loaded or
heavily planted ponds.